
Siemens 6AV6362-6AA08-0BB0 SIMATIC PC Adapter
€ 541,41
The Siemens 6AV6362-6AA08-0BB0 is a PC Adapter belonging to the SIMATIC product family, designed to provide a communication interface between a PC or programming device and Siemens SIMATIC PLCs. It enables direct connection from a standard PC serial (RS-232) or USB port to the MPI or PROFIBUS interface of SIMATIC S7 controllers. This adapter is a key tool for programming, diagnostics, and configuration tasks in SIMATIC automation environments.
The 6AV6362-6AA08-0BB0 PC Adapter supports MPI and PROFIBUS-DP communication protocols, allowing access to S7-300 and S7-400 PLCs via STEP 7 or other Siemens engineering software. The adapter is powered directly through the PLC interface, requiring no external power supply. It features automatic baud rate detection on the PROFIBUS/MPI side and supports data transfer rates up to 12 Mbit/s on the bus side, making it suitable for both programming and online monitoring tasks.
This adapter is widely used in manufacturing plants, process automation facilities, and machine tool environments where SIMATIC S7 PLCs are deployed. It is an essential tool for maintenance engineers and system integrators who need to connect a laptop or PC to an S7 controller for program uploads, downloads, diagnostics, or parameter changes without requiring a dedicated CP communication card. Its compact and portable form factor makes it particularly suited for field service and commissioning work.
Technical Specifications
| Communication Interface (PC Side) | RS-232 (Serial) |
|---|---|
| Communication Interface (PLC Side) | MPI / PROFIBUS-DP (9-pin Sub-D) |
| Supported Protocols | MPI, PROFIBUS-DP |
| Max. Bus Transfer Rate | 12 Mbit/s |
| Power Supply | Powered via MPI/PROFIBUS interface (no external supply required) |
| Compatible Controllers | SIMATIC S7-300, S7-400 |
| Compatible Software | STEP 7 V5.x, WinCC, ProTool |
| Connector (PC Side) | 9-pin RS-232 Sub-D |
| Connector (PLC Side) | 9-pin Sub-D (MPI/PROFIBUS) |
| Series/Product Family | SIMATIC PC Adapter |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | -20 °C to +70 °C |
| Certifications | CE |
Common Communication Error Codes & Diagnostics
- No connection to target device
- The adapter cannot establish communication with the PLC. This typically appears as an error in STEP 7 or the engineering tool.
Check that the MPI/PROFIBUS cable is securely connected. Verify the correct COM port is selected in the PG/PC interface settings. Ensure baud rate matches the PLC network settings. - Wrong interface configured
- The PG/PC interface in Windows is not set to use the PC Adapter on the correct COM port.
Open 'Set PG/PC Interface' in the SIMATIC software and select 'PC Adapter (MPI)' or 'PC Adapter (PROFIBUS)' with the correct COM port assignment. - Baud rate mismatch
- The adapter detects a baud rate on the bus that is incompatible or cannot be auto-detected.
Verify the MPI/PROFIBUS network baud rate in the PLC configuration and ensure it falls within the supported range of the adapter. Reconnect the adapter after confirming settings. - COM port not found
- The operating system does not recognize the RS-232 COM port assigned to the adapter.
Check Device Manager for COM port availability. Ensure no other application is occupying the COM port. Try a different COM port if available. - Timeout during communication
- Communication is established but data transfer times out during upload or download operations.
Check cable integrity and connection quality. Reduce cable length if possible. Verify that the PLC is in the correct operating mode (STOP or RUN as required). - Multiple masters on bus conflict
- More than one master device is active on the MPI/PROFIBUS network causing bus conflicts.
Ensure only one programming device is active on the bus at a time. Check MPI node addresses to avoid duplicates. Disconnect other masters if not required during programming.
Frequently Asked Questions
What PLC families are compatible with the 6AV6362-6AA08-0BB0 PC Adapter?
This adapter is compatible with SIMATIC S7-300 and S7-400 PLCs via their MPI or PROFIBUS-DP interfaces. It is not intended for use with S7-1200 or S7-1500 series controllers, which use PROFINET/Ethernet-based programming interfaces.
Does the 6AV6362-6AA08-0BB0 require an external power supply?
No, the adapter draws its operating power directly from the MPI or PROFIBUS interface of the connected PLC, so no external power supply is needed.
Which Siemens software is supported by this adapter?
The adapter is supported by STEP 7 V5.x, WinCC, and ProTool engineering software. It is configured via the 'Set PG/PC Interface' utility in Windows.
What is the maximum supported baud rate on the bus side?
The adapter supports PROFIBUS/MPI baud rates up to 12 Mbit/s on the bus side, with automatic baud rate detection.
Can this adapter be used with a USB-to-RS232 converter?
While some USB-to-RS232 converters may work, Siemens recommends using a native RS-232 serial port for reliable communication. Compatibility with USB converters is not officially guaranteed and may cause communication issues.
Troubleshooting
STEP 7 cannot find the PLC after connecting the adapter
Verify the PG/PC interface is set to 'PC Adapter (MPI)' with the correct COM port. Check that the RS-232 cable is connected to the PC and the MPI cable is connected to the PLC's MPI port.
Open 'Set PG/PC Interface', select the correct adapter and COM port, and run the diagnostics function to test connectivity. Ensure the PLC is powered on and the MPI network address is correctly configured.
Intermittent communication dropouts during program transfer
Inspect the MPI cable for damage or loose connectors. Check if the RS-232 COM port is shared with another application or device.
Replace the MPI cable if damaged. Ensure no other software is using the COM port. Shorten cable runs if they exceed recommended lengths and verify proper bus termination at both ends of the PROFIBUS/MPI network.
Adapter powers on but no data transfer occurs
Check that the baud rate configured in STEP 7 matches the actual MPI network baud rate of the PLC. Confirm the PLC node address is within the valid range.
Adjust the baud rate in the PG/PC interface settings to match the PLC network. Ensure the MPI node address of the programming device does not conflict with existing nodes on the network.
COM port not recognized in Windows Device Manager
The RS-232 port may be disabled in BIOS or occupied by another device. If using a USB-to-RS232 adapter, the driver may not be installed correctly.
Enable the COM port in BIOS settings or check Device Manager for conflicts. If using a USB converter, reinstall the manufacturer's driver and assign a low COM port number (COM1-COM4) for compatibility with SIMATIC software.
Error message 'No executable module' when trying to go online in STEP 7
This indicates a software configuration issue rather than a hardware fault. The PG/PC interface may be incorrectly configured or the STEP 7 project may not match the connected PLC.
Verify the PG/PC interface settings and ensure the correct adapter is selected. Confirm the STEP 7 project hardware configuration matches the actual PLC hardware, including CPU type and MPI address.
| Condition | Repair, Used, Refurbished, New in box (sealed) |
|---|
Related products
-
Siemens 6AG1642-0BA01-4AX0 TP177B
€ 675,00Select options This product has multiple variants. The options may be chosen on the product page -
Siemens 6AV6642-8BA10-0AA0 TP177B
€ 964,00 – € 1.611,00Price range: € 964,00 through € 1.611,00Select options This product has multiple variants. The options may be chosen on the product page -
Siemens 6AG1545-0CC10-4AX0 SIPLUS HMI TP900
€ 1.340,00Select options This product has multiple variants. The options may be chosen on the product page



